Base | Representation |
---|---|
bin | 110010100011… |
… | …111001110001 |
3 | 220221101102102 |
4 | 302203321301 |
5 | 11343114012 |
6 | 1152030145 |
7 | 220442102 |
oct | 62437161 |
9 | 26841372 |
10 | 13254257 |
11 | 7533135 |
12 | 4532355 |
13 | 2990b73 |
14 | 1a903a9 |
15 | 126c2c2 |
hex | ca3e71 |
13254257 has 2 divisors, whose sum is σ = 13254258. Its totient is φ = 13254256.
The previous prime is 13254239. The next prime is 13254259. The reversal of 13254257 is 75245231.
It is a happy number.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 10916416 + 2337841 = 3304^2 + 1529^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-13254257 is a prime.
Together with 13254259, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (13254259) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6627128 + 6627129.
It is an arithmetic number, because the mean of its divisors is an integer number (6627129).
Almost surely, 213254257 is an apocalyptic number.
It is an amenable number.
13254257 is a deficient number, since it is larger than the sum of its proper divisors (1).
13254257 is an equidigital number, since it uses as much as digits as its factorization.
13254257 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 8400, while the sum is 29.
The square root of 13254257 is about 3640.6396416015. The cubic root of 13254257 is about 236.6565137041.
Adding to 13254257 its reverse (75245231), we get a palindrome (88499488).
The spelling of 13254257 in words is "thirteen million, two hundred fifty-four thousand, two hundred fifty-seven".
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